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Example code of hypothermic/phpxssblock

Informations about the package phpxssblock

PHP XSS Blocker

Block the IP Addresses of clients who are trying to exploit your website by using XSS.

Usage

See the form.php example to get a better view of how to implement this library.

At the top of each page, put:

And, when handling user input, validate each $_GET and $_POST through the XBlock Sanitize Method:

Database

This library requires a database to store the list of blocked IP's. It is very simple to set up the database, and an implementation for MySQL/MariaDB is included by default. You will only need to create the database user and you're set.

By default, the MySQL implementation will try to connect to localhost:3306 with user xssblock-user. You may change the settings in config.php

Weaknesses

Of course, this project is more to scare off attackers than to provide security. The red screen surely looks scary and discouraging.

Keep in mind that a smart attacker could "change" his IP address by using a proxy/vpn or by connecting to the Tor network.

All versions of phpxssblock with dependencies

PHP Build Version
Package Version
Requires php Version >=7.1
ext-pdo Version *
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